35646684 Investigatory Project in Physics Focusing on Optics and Renewable Energy Fortune High School ehehioeodjkedel;kepo eiuieoeioeoiw

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Th is study aimed to fi nd out i f an old shoebox and a thi ck tin f oil can  be conver ted to a mor e usef ul piece of cooki ng equi pment.The  f easibi lity of r ef lective solar heated gr il l that is built f rom a car dboard  box, tin foil , and poster board as an altern ative cooki ng equi pment was  studied in this r esearch project. Th e cardboard box was cut and  shaped.the tin f oil is settl ed in the mi ddle maki ng i t looks like a slide . We go outside in the heat of the sun. th e barbeque sti cks wer e placed  in th e spot wher e r eflection of the sunl ight f ocuses on th e hotdog .just  like a r eal skewer the hotdog wer e cooked there for minu tes.tasted  it.and voila.real hotdogs on sti ck just like mom used to cook.

A solar heated gr il l can be built fr om a cardboard box, tin foil , and  poster boar d. Sun light hi ts the r eflective sur face and f ocuses on th e hot  dog held i n th e center . Students can work i n pair s or i ndividually i f  there are enough materi als. Th is is a paraboli c cooker we built a whil e ago, so unf ortunately we  can' t show step by step photos of it' s constr ucti on. H owever, it' s  r elati vely easy to see how it was put together . I t makes a great Physics project. Unl ike most, you' ll actually get some  use out of it af ter wards. Some of the principles it demonstrates are:  1. Optics: focusing parallel r ays of i ncident l ight thr ough the use of a  paraboli c mir r or.

2. Ener gy tr ansf ormation: li ght to heat  3. Renewable energy: solar power 

Th is study thr u physics aims to fi nd out if an old shoe car ton box can  be usef ul to make an alter nati ve cooki ng machi ne.

Th is study aims to fi nd out if an old shoe car ton box can be useful to  make an altern ative cooki ng machine. 

Provide inf ormation to students and teacher s with r espect to the  recycli ng of car ton box or old shoe box 

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ser ve as motivating factor f or the schools or institutions to dir ect  their students and to f ur ther str engthen their capabil ities for  developing old carton box into a cooking gri ll and other  processes to maximize the r ecycling of old carton box. F ur thermor e, the outcome of th e study wil l pr ovide empir ically  –  based information to poli cy makers i n Ecological recycled Waste  M anagement. (RA 9003) jun k carton s are usuall y stocked or  thr own out elsewher e .Conver ting th ese non-f unctional car tons  does not onl y suppor t RA 9003 but i t also opens an avenue to  develop technology in the commun ity.

This study was conducted Au gust 07, 2010 to Au gust 10, 2010  finalized in a day. I t is limited to the use of carton box, tin foil . Glues, muski n tape  barbeque sti cks , and hotdogs , yummy. Th e conversion of an old carton box i nto a solar heated gri ll is the  main concer n of this r esearch. Th e output can be done by pr oper ly  assembli ng it.

F or pur pose of clari ty, the foll owing ter ms used in the study are  her e by defined -  H otdog - A commonl y-used (but etymologicall y obscur e) ter m for  a sausage that is usuall y eaten i n a bun wi th ketchup, mustar d, and/or r eli sh. Gr ill - .Outdoor cooking appliance .To cook food above char coal  , gas or other means of heat. (typicall y outside) . Ti n F oil - A wr apping substance to keep food fr esh 

Skewer - is a thi n metal or wood stick used to hold pieces of f ood  together . Th ey are used whi le r oasti ng meats, and i n other  culi nar y appli cations.

 Materials/Equipment: 

1. Two pieces of heavy car dboar d (like the side of a cardboard car ton). The f ir st piece must be at least ten i nches squar e  and the second smal ler piece must be at least f our inches by fi ve  inches. 2. A pi ece of light poster boar d eight inches wide and sixteen inches  long. 3. Twelve-inch wi de aluminum foil . (You will use about 32 inches of  the mater ial .)  4. Some masking tape. (You may experiment wi th other types of tape.)  5. Nine inch l ong sti cks about 1/16 in ch in diameter . You may also use  length s of heavy wir e.

1. Select a long nar r ow box; the longer the box the more heat  collection i s possible. Choose a focal length between 5" and 10"  and design a parabolic cur ve as seen in the pictur e. One template  coul d be used for all the cooker s. Tr ace the cur ve on the open  end of the box so that it i s center ed and str aight 

2. Cut out the cur ve with a utili ty kni fe. Str ess the importance of  being exact. M easur e and cut a piece of poster boar d that wi ll fix  flush against the opening to the box. Attach this with tape  begin ni ng at th e center and wor ki ng towar d to edges.

3. Cover the curve with whi te glue and apply alumi nu m foi l shiny  side out. Start i n the middle and smooth toward the edges. Try  not to wr in kl e or fold the foil; you want it as smooth as possible.

4. Use two scraps of cardboard taped to each side as supports. Using th e sun or a projector li ght, test the focal poin t. Th er e  shoul d be a bri ght spot wher e light i s concentr ated; mark thi s  spot and punch a hol e for the skewer . Use a section of a coat  hanger fr om whi ch the paint has been r emoved for a skewer .

5.

Enjoy your hot dog! 

Th is chapter presents the data, analysis and inter pretati on of f indi ngs. I t is in this part  where by the data have been sorted out, tabul ated, subj ected to  stati sti cal anal ysis and then th e findi ngs wer e inter preted. after we had pr oduced the hotdog grill out of r ecycled old carton  box.and gri lled the hotdog ther e thr u spotted sun light r eflections on  the ti n foil. We asked somebody to rate the taste and acceptance of the  food.

Our hypothesis was right. The hot dog gr ill made of car dboard can  r eall y cooked delicious hotdogs whi ch i s acceptable in the real world, the cooker is cheap if bui lt . Because the mater ials are not expensive. Produced hotdog is the same as it i s cooked in the gr ill .We think that  if a reflective hot dog cooker can be built f rom a cardboar d box, ti n  foil , and poster boar d is feasible that hotdog can be cooked there just  like mama used to cook. We think that it is cheaper and economical  since we live in a tr opical countr y, we thi nk that th is wil l be acceptable  in our ti me..

On the basis of the conclusions formul ated, the foll owing  r ecommendati ons are offer ed for possible fur ther study. 1. I nf ormation disseminati ons to the people on the proper r ecycli ng  of old an d dil apidated Car ton boxes and oth er r ecycled wastes  should be intensif ied. 2. People should know the values of recycling not only the  biodegradable and non biodegradable wastes but al so for them to  do their part to cut down on waste polluti on that aff ects the  environment. 3. Carton user s should be gui ded accordi ngl y on how to r ecycle  destroyed shoe cartons rather than to junk them elsewhere, because dumping them elsewhere, will eventually can cause  messy sur r oundin gs. F or them also to help r educe the fir e whi ch  are fatal to human beings.